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MCP3008T-I/P

2.7V 4-Channel/8-Channel 10-Bit A/D Converters with SPI Serial Interface

Microchip Technology 

MCP3004/3008

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD ..................................................................................7.0V

All Inputs and Outputs w.r.t. VSS ............– 0.6V to VDD + 0.6V

Storage Temperature ................................... –65°C to +150°C

Ambient temperature with power applied.......–65°C to +150°C

Soldering temperature of leads (10 seconds) ............. +300°C

ESD Protection On All Pins (HBM) ...................................≥ 4 kV

ELECTRICAL SPECIFICATIONS

† Notice: Stresses above those listed under “Absolute

Maximum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional operation of

the device at those or any other conditions above those

indicated in the operational listings of this specification is not

implied. Exposure to maximum rating conditions for extended

periods may affect device reliability.

Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5V, VREF = 5V,

TA = -40°C to +85°C, fSAMPLE = 200 ksps and fCLK = 18*fSAMPLE. Unless otherwise noted, typical values apply for

VDD = 5V, TA = +25°C.

Parameter

Sym

Min

Typ

Max Units

Conditions

Conversion Rate

Conversion Time

tCONV

—

—

10

clock

cycles

Analog Input Sample Time

tSAMPLE

1.5

clock

cycles

Throughput Rate

DC Accuracy

fSAMPLE

—

—

200

ksps VDD = VREF = 5V

75

ksps VDD = VREF = 2.7V

Resolution

10

bits

Integral Nonlinearity

INL

—

±0.5

±1

LSB

Differential Nonlinearity

DNL

—

±0.25

±1

LSB No missing codes over

temperature

Offset Error

—

—

±1.5

LSB

Gain Error

—

—

±1.0

LSB

Dynamic Performance

Total Harmonic Distortion

Signal-to-Noise and Distortion

(SINAD)

—

-76

—

61

dB VIN = 0.1V to 4.9V@1 kHz

dB VIN = 0.1V to 4.9V@1 kHz

Spurious Free Dynamic Range

Reference Input

—

78

dB VIN = 0.1V to 4.9V@1 kHz

Voltage Range

Current Drain

Analog Inputs

0.25

—

VDD

—

100

150

0.001

3

V Note 2

µA

µA CS = VDD = 5V

Input Voltage Range for CH0 or

CH1 in Single-Ended Mode

VSS

—

VREF

V

Input Voltage Range for IN+ in

pseudo-differential mode

Input Voltage Range for IN- in

pseudo-differential mode

IN-

— VREF+IN-

VSS-100 — VSS+100 mV

Note 1: This parameter is established by characterization and not 100% tested.

2: See graphs that relate linearity performance to VREF levels.

3: Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity

performance, especially at elevated temperatures. See Section 6.2 “Maintaining Minimum Clock

Speed”, “Maintaining Minimum Clock Speed”, for more information.

© 2008 Microchip Technology Inc.

DS21295D-page 3

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